:root{color-scheme:light;--blue:#2e3192;--blue2:#4148bf;--red:#ed1c24;--ink:#17234c;--muted:#65718e;--line:#e6e9f5;--off:#f5f7fd;--white:#fff;--accent:#fdf0f2;--green:#00a693;--shadow:0 16px 46px rgba(29,44,102,.08);font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--off);color:var(--ink)}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}a{text-decoration:none;color:inherit}h1,h2,h3,p{margin:0}h1{font-size:clamp(1.55rem,4vw,2.3rem);letter-spacing:-.055em;line-height:1.2}h2{font-size:1.16rem;letter-spacing:-.035em}h3{font-size:1rem}p{line-height:1.62}small{font-size:.79rem}label{font-size:.83rem;font-weight:660;color:var(--ink)}input,select,textarea{width:100%;padding:13px 14px;border:1px solid #dde3f2;border-radius:13px;background:#fff;color:var(--ink);outline:0;min-width:0}input:focus,select:focus,textarea:focus{border-color:#7e84d7;box-shadow:0 0 0 3px #e7e8ff}textarea{resize:vertical;min-height:106px}form{display:grid;gap:13px}.field{display:grid;gap:6px}.flex{display:flex;align-items:center;gap:10px}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.muted{color:var(--muted)}.tiny{font-size:.73rem}.semi{font-weight:680}.center{text-align:center}.right{text-align:right}.uppercase{text-transform:uppercase;letter-spacing:.13em;font-size:.7rem;font-weight:790}.mt{margin-top:15px}.mb{margin-bottom:15px}.gap{display:grid;gap:14px}.gap8{display:grid;gap:8px}.fill{width:100%}.hidden{display:none!important}.divider{height:1px;background:var(--line);margin:9px 0}.pill{display:inline-flex;align-items:center;gap:5px;padding:6px 10px;border-radius:30px;font-weight:760;font-size:.69rem;background:#eef0fc;color:var(--blue);white-space:nowrap}.pill.green{color:#087f73;background:#e3f8f2}.pill.gold{color:#936000;background:#fff5d9}.pill.red{color:#c61e3d;background:#ffe6ec}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 17px;background:var(--blue);color:#fff;border:1px solid var(--blue);border-radius:13px;font-weight:740;box-shadow:0 8px 18px rgba(46,49,146,.13);transition:transform .15s,background .15s;white-space:nowrap}.btn:hover{transform:translateY(-1px);background:#21266f}.btn:active{transform:translateY(0)}.btn.outline{color:var(--blue);background:#fff;border-color:#d6dcf1;box-shadow:none}.btn.outline:hover{background:#f1f2fc}.btn.soft{background:#eef0fc;color:var(--blue);border-color:#eef0fc;box-shadow:none}.btn.green{background:var(--green);border-color:var(--green)}.btn.red{background:var(--red);border-color:var(--red)}.btn.sm{padding:9px 11px;border-radius:10px;font-size:.8rem}.btn.block{width:100%}.btn.ghost{background:transparent;color:var(--muted);box-shadow:none;border:0;padding:8px}.icon{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}.icon.big{height:26px;width:26px}
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:minmax(360px,1.03fr) minmax(380px,.97fr)}.auth-art{padding:clamp(36px,8vw,90px);background:linear-gradient(145deg,#262b84 2%,#3742b1 61%,#4853ca);color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;gap:80px}.auth-art:before,.auth-art:after{content:'';position:absolute;border:1px solid #ffffff24;border-radius:50%;pointer-events:none}.auth-art:before{width:650px;height:650px;left:-260px;bottom:-400px}.auth-art:after{width:540px;height:540px;right:-340px;top:-250px}.brand{display:flex;align-items:center;gap:11px;font-weight:850;letter-spacing:-.04em;font-size:1.12rem}.brand-bubble{height:42px;width:42px;border-radius:15px;background:linear-gradient(135deg,#fff,#e9ecff);color:var(--blue);display:grid;place-items:center;box-shadow:0 5px 17px #00000020}.brand-sub{display:block;font-weight:500;font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;opacity:.7;margin-top:1px}.auth-art h1{font-size:clamp(2.5rem,4vw,4.4rem);line-height:1.04;max-width:700px;letter-spacing:-.07em}.auth-art p{font-size:1rem;max-width:500px;color:#e2e8ff}.auth-cards{display:flex;gap:12px;flex-wrap:wrap}.glass{padding:14px 18px;background:#ffffff1d;border:1px solid #ffffff2a;border-radius:16px;backdrop-filter:blur(10px);font-size:.84rem}.auth-main{min-height:100vh;display:grid;place-items:center;padding:30px 26px}.auth-box{max-width:420px;width:100%;display:grid;gap:24px}.auth-box h2{font-size:1.8rem}.auth-switch{display:flex;background:#eef0f9;border-radius:14px;padding:4px}.auth-switch button{flex:1;border:0;background:transparent;padding:11px;border-radius:11px;color:var(--muted);font-weight:750}.auth-switch button.active{background:#fff;color:var(--blue);box-shadow:0 4px 12px #141c4a13}.auth-foot{text-align:center;color:var(--muted);font-size:.82rem}
.shell{display:grid;grid-template-columns:258px minmax(0,1fr);min-height:100vh}.sidebar{background:#fff;border-right:1px solid var(--line);padding:27px 18px;display:flex;flex-direction:column;gap:26px;position:sticky;top:0;height:100vh}.side-brand{padding:0 8px}.side-nav{display:grid;gap:7px}.nav-item{width:100%;display:flex;align-items:center;gap:12px;padding:13px 14px;border:0;border-radius:12px;background:transparent;color:#667391;font-size:.87rem;font-weight:680;text-align:left}.nav-item.active{color:var(--blue);background:#eef0fb}.nav-item:hover{background:#f3f5fb}.side-foot{margin-top:auto;padding:13px;border-radius:15px;background:var(--off)}.user-avatar{height:38px;width:38px;background:linear-gradient(145deg,#dee1ff,#f4eef3);border-radius:14px;display:grid;place-items:center;color:var(--blue);font-weight:830}.workspace{min-width:0;padding:22px clamp(15px,3vw,46px) 90px;max-width:1500px;width:100%;margin:auto}.topbar{height:58px;display:flex;align-items:center;justify-content:space-between;margin-bottom:21px}.eyebrow{color:var(--muted);font-size:.76rem}.welcome{display:grid;gap:6px}.hero{position:relative;overflow:hidden;color:#fff;background:linear-gradient(110deg,#292d89,#3b43b0 75%,#5260ce);border-radius:23px;padding:clamp(24px,4vw,38px);min-height:180px;display:flex;align-items:center;justify-content:space-between;gap:20px;box-shadow:0 18px 42px #2e319229}.hero:after{content:'';width:300px;height:300px;position:absolute;border-radius:50%;border:42px solid #ffffff13;right:-120px;top:-125px}.hero h1{max-width:500px;font-size:clamp(1.5rem,4vw,2.2rem)}.hero p{margin-top:9px;color:#e7e9ff;max-width:520px;font-size:.86rem}.hero-tag{padding:12px 16px;border-radius:16px;background:#ffffff20;white-space:nowrap;font-size:.78rem;z-index:1}.section-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:23px 0 13px}.section-head p{font-size:.82rem;color:var(--muted)}.card{background:#fff;border:1px solid #e5e8f4;border-radius:19px;box-shadow:0 6px 24px rgba(42,51,107,.035);padding:21px;min-width:0}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.action-card{min-height:170px;display:flex;flex-direction:column;align-items:flex-start;gap:12px;justify-content:space-between}.action-card h3{font-size:.97rem}.action-card p{font-size:.78rem;color:var(--muted);margin-top:5px}.iconbox{display:grid;place-items:center;width:45px;height:45px;border-radius:15px;background:#eef0fb;color:var(--blue)}.iconbox.teal{color:#078878;background:#e5f9f4}.iconbox.pink{color:#d82849;background:#ffedf0}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.stat{padding:18px;background:#fff;border:1px solid var(--line);border-radius:17px}.stat strong{display:block;font-size:1.65rem;letter-spacing:-.06em;margin-top:5px}.stat small{color:var(--muted)}.rowline{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-top:1px solid #edf0f7}.rowline:first-child{border-top:0;padding-top:0}.rowline:last-child{padding-bottom:0}.rowtitle{font-weight:710;font-size:.86rem}.rowmeta{font-size:.76rem;color:var(--muted);margin-top:4px;line-height:1.5}.table-scroll{width:100%;overflow:auto}.table{width:100%;border-collapse:collapse;font-size:.79rem;min-width:650px}.table th{color:#6d7892;font-size:.72rem;font-weight:740;text-align:left;padding:12px 9px;border-bottom:1px solid var(--line)}.table td{padding:13px 9px;border-bottom:1px solid #edf0f7;vertical-align:middle}.table tr:last-child td{border-bottom:0}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.quiet{border:1px dashed #d2d8eb;border-radius:15px;padding:25px;text-align:center;color:var(--muted);font-size:.83rem;line-height:1.6}.notice{background:#f1f3ff;border:1px solid #e1e5fc;padding:12px 15px;border-radius:13px;color:#414e84;font-size:.82rem;line-height:1.55}.notice.warn{background:#fffbec;color:#7b5a17;border-color:#ffeab7}.info-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;font-size:.85rem}.info-row span{color:var(--muted)}.info-row strong{text-align:right}.score-card{padding:22px;background:#eef0fe;border-radius:17px;text-align:center}.score-card strong{display:block;font-size:2.7rem;letter-spacing:-.07em;color:var(--blue);line-height:1.15}.score-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.score-box{padding:13px 5px;border:1px solid var(--line);border-radius:12px;text-align:center}.score-box strong{display:block;font-size:1.45rem;color:var(--blue)}.score-box span{font-size:.63rem;color:var(--muted)}.mobile-top,.bottom-nav{display:none}
#toast{position:fixed;bottom:25px;right:25px;z-index:120;background:#18265a;color:#fff;padding:14px 19px;border-radius:13px;box-shadow:var(--shadow);max-width:420px;opacity:0;pointer-events:none;transform:translateY(20px);transition:.2s;font-size:.87rem}#toast.show{opacity:1;transform:translateY(0)}#toast.error{background:#ac2940}.modal-back{position:fixed;inset:0;background:#101939ad;display:grid;place-items:center;z-index:70;padding:15px;overflow:auto}.modal{background:#fff;border-radius:23px;padding:24px;width:min(520px,100%);max-height:92vh;overflow-y:auto;box-shadow:0 30px 80px #0005}.modal.wide{width:min(760px,100%)}.modal-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.modal-title h2{font-size:1.23rem}.video-stage{background:#131a34;min-height:260px;border-radius:19px;position:relative;overflow:hidden;display:grid;place-items:center}.video-stage video{width:100%;height:290px;object-fit:cover}.video-stage .local-video{position:absolute;bottom:15px;right:15px;height:96px;width:128px;border:2px solid #fff9;border-radius:12px;background:#262d4c}.video-stage .video-empty{color:#dbe2ff;text-align:center;padding:20px}.call-controls{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap;margin-top:14px}.call-controls button{min-width:100px}.role-tag{display:inline-flex;align-items:center;gap:5px;padding:7px 11px;border-radius:30px;background:#eff2fd;color:var(--blue);font-size:.74rem;font-weight:700}
@media (max-width:1100px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar{width:220px}.shell{grid-template-columns:220px 1fr}.auth-art{padding:40px}.auth-wrap{grid-template-columns:.9fr 1.1fr}}
@media (max-width:760px){.auth-wrap{display:block;min-height:100vh;background:#fff}.auth-art{min-height:210px;gap:13px;padding:28px 23px 30px;border-radius:0 0 28px 28px}.auth-art h1{font-size:2rem}.auth-art p{font-size:.8rem}.auth-cards{display:none}.auth-main{min-height:auto;padding:27px 22px}.auth-box{gap:19px}.auth-box h2{font-size:1.42rem}.shell{display:block}.sidebar{display:none}.mobile-top{display:flex;background:#fff;padding:14px 18px;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}.mobile-top .brand{font-size:1rem}.mobile-top .brand-bubble{height:37px;width:37px}.workspace{padding:17px 16px 96px}.topbar{height:auto;margin-bottom:15px}.topbar .muted{font-size:.75rem}.hero{padding:25px 20px;min-height:150px;border-radius:19px}.hero-tag{display:none}.cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.action-card{min-height:150px;padding:16px}.action-card h3{font-size:.88rem}.action-card p{font-size:.73rem}.iconbox{width:40px;height:40px}.grid2{grid-template-columns:1fr}.stats{gap:9px}.stat{padding:14px}.stat strong{font-size:1.4rem}.card{padding:16px}.section-head{margin:21px 0 10px}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:40;background:#fff;border-top:1px solid var(--line);padding:8px 4px calc(8px + env(safe-area-inset-bottom));justify-content:space-around;box-shadow:0 -5px 25px #151b3a09}.bottom-nav .nav-item{flex:1;display:grid;place-items:center;gap:4px;border-radius:11px;padding:8px 1px;font-size:.63rem;white-space:nowrap}.bottom-nav .nav-item .icon{width:20px;height:20px}.form-grid{grid-template-columns:1fr}.modal{padding:19px;max-height:87vh;border-radius:20px}.score-grid{gap:6px}.score-box strong{font-size:1.15rem}.rowline{flex-wrap:wrap}#toast{left:16px;right:16px;bottom:83px}.video-stage video{height:230px}.video-stage .local-video{height:78px;width:100px}}
@media (max-width:370px){.cards{grid-template-columns:1fr 1fr}.btn{padding:11px 12px;font-size:.78rem}.score-grid{grid-template-columns:repeat(2,1fr)}}
@media print{.sidebar,.bottom-nav,.mobile-top,.topbar,.btn,.section-head,#toast{display:none!important}body{background:#fff}.shell{display:block}.workspace{padding:0}.card{box-shadow:none;border:0}.print-report{max-width:720px;margin:auto}.print-report .score-grid{grid-template-columns:repeat(4,1fr)}}
/* V2 — slot scheduling, administration and polished table treatment */
.slot-row{display:flex;align-items:center;gap:16px;padding:15px 6px;border-bottom:1px solid var(--line);flex-wrap:wrap}.slot-row:last-child{border-bottom:0}.slot-calendar{display:grid;place-items:center;min-width:74px;min-height:66px;padding:8px 11px;border-radius:14px;background:#edf0fe;color:var(--blue);font-weight:830;letter-spacing:-.025em;text-align:center}.slot-detail{display:grid;gap:4px;flex:1;min-width:180px}.slot-detail strong{font-size:.9rem}.slot-detail span{font-size:.77rem;color:var(--muted)}.slot-price{color:var(--blue);font-size:.95rem}.student-search-row[hidden]{display:none}.table th{position:sticky;top:0;background:#fff;z-index:1}.table tbody tr:hover{background:#f9faff}.card h2{line-height:1.3}.hero{background:linear-gradient(114deg,#24297d 3%,#2e3192 48%,#4854be 100%)}.stat{border:1px solid #e4e8f5;box-shadow:0 8px 24px #25388608}.sidebar{box-shadow:10px 0 32px #15245706}.nav-item.active{box-shadow:inset 3px 0 0 var(--blue)}
@media(max-width:760px){.bottom-nav{overflow-x:auto;justify-content:flex-start;scrollbar-width:thin}.bottom-nav .nav-item{min-width:67px;flex:1 0 67px}.slot-row{gap:11px}.slot-row .btn{width:100%}.slot-calendar{min-height:54px;min-width:60px}.slot-price{margin-left:auto}.section-head{flex-wrap:wrap}.section-head .field{width:100%;min-width:0!important}}